Grygla, MN Natural Disasters and Weather Extremes
The chance of earthquake damage in Grygla is about the same as Minnesota average and is much lower than the national average. The risk of tornado damage in Grygla is much lower than Minnesota average and is much lower than the national average.
Earthquake Index, #530
| Grygla, MN | 0.00 |
| Minnesota | 0.01 |
| U.S. | 1.81 |
The earthquake index value is calculated based on historical earthquake events data using USA.com algorithms. It is an indicator of the earthquake level in a region. A higher earthquake index value means a higher chance of an earthquake.
Volcano Index, #1
| Grygla, MN | 0.0000 |
| Minnesota | 0.0000 |
| U.S. | 0.0023 |
The volcano index value is calculated based on the currently known volcanoes using USA.com algorithms. It is an indicator of the possibility of a region being affected by a possible volcano eruption. A higher volcano index value means a higher chance of being affected.
Tornado Index, #847
| Grygla, MN | 42.04 |
| Minnesota | 135.90 |
| U.S. | 136.45 |
The tornado index value is calculated based on historical tornado events data using USA.com algorithms. It is an indicator of the tornado level in a region. A higher tornado index value means a higher chance of tornado events.
Other Weather Extremes Events
A total of 1,133 other weather extremes events within 50 miles of Grygla, MN were recorded from 1950 to 2010. The following is a break down of these events:
| Type | Count | Type | Count | Type | Count | Type | Count | Type | Count |
| Avalanche: | 0 | Blizzard: | 36 | Cold: | 33 | Dense Fog: | 1 | Drought: | 10 |
| Dust Storm: | 0 | Flood: | 91 | Hail: | 534 | Heat: | 9 | Heavy Snow: | 26 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 7 | Landslide: | 0 | Strong Wind: | 20 |
| Thunderstorm Winds: | 276 | Tropical Storm: | 0 | Wildfire: | 0 | Winter Storm: | 64 | Winter Weather: | 1 |
| Other: | 25 | ||||||||
Volcanos Nearby
No volcano is found in or near Grygla, MN.
Historical Earthquake Events
No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Grygla, MN.
No historical earthquake events found in or near Grygla, MN.
Historical Tornado Events
A total of 12 historical tornado events that had recorded magnitude of 2 or above found in or near Grygla, MN.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 34.9 | 1983-08-25 | 2 | 48°00'N / 96°14'W | 1.30 Miles | 100 Yards | 0 | 0 | 0K | 0 | Pennington | |
| 37.3 | 1997-06-27 | 2 | 48°48'N / 96°02'W | 48°42'N / 96°07'W | 11.00 Miles | 150 Yards | 0 | 1 | 250K | 0 | Roseau |
| Brief Description: A tornado damaged 2 homes, several farm buildings, and 2 steel grain bins as it struck 10 miles north and 2 miles east of Greenbush. One man barely made it out of his trailer home before the tornado struck. As the tornado travelled between the 2 homes, it came close to a tractor plowing a field. A man in the tractor had glass blown into his eyes as the glass tractor cab shattered. A third home, 3 miles east and 2 miles north of Greenbush, was shifted off its foundation as the tornado passed. The tornado crossed highway 11, damaging a fourth home located 3 miles east of Greenbush, before dissipating. | |||||||||||
| 37.9 | 1980-07-11 | 2 | 47°57'N / 96°19'W | 47°58'N / 96°13'W | 3.80 Miles | 33 Yards | 0 | 0 | 2.5M | 0 | Pennington |
| 39.8 | 2010-06-17 | 3 | 47°46'N / 96°05'W | 47°51'N / 96°04'W | 6.00 Miles | 150 Yards | 0 | 0 | 0K | 0K | Red Lake |
| Brief Description: EVENT NARRATIVE: This tornado began in Polk County, about 4 miles south-southwest of Mentor at 615 PM CDT. The tornado tracked into Red Lake County and continued an additional 6 miles to roughly 4 miles east-northeast of Terrebonne. The tornado sheared trees and blew down farm buildings near the Polk County line and lofted debris from Mentor well past the community of Plummer. The total track length was about 15 miles and peak winds were estimated at 145 mph. EPISODE NARRATIVE: Conditions were ripe by the afternoon of the 17th for a major severe weather outbreak. A surface low had moved into east central North Dakota with an occluded front extending to the southeast. Warm and humid air was in place ahead of the front, with a much drier airmass pushing in behind it. The 500mb low was located over northwest North Dakota with a nice southwest to northeast upper jet pushing into eastern North Dakota. Two lines of convection formed by late afternoon, one from Roseau County down toward Eastern Otter Tail County and the other over east central North Dakota. Nearly all the cells that formed took on a classic hook shape with rotation very evident on radar imagery. Multiple tornado warnings were issued before the event wound down by mid evening. The strongest tornadoes were determined to be EF4 tornadoes, two in west central Minnesota and one in northeast North Dakota. | |||||||||||
| 41.3 | 1978-06-26 | 2 | 47°53'N / 96°16'W | 0.10 Mile | 100 Yards | 0 | 0 | 25K | 0 | Red Lake | |
| 41.6 | 1980-07-11 | 2 | 47°56'N / 96°23'W | 47°57'N / 96°19'W | 2.30 Miles | 200 Yards | 0 | 0 | 2.5M | 0 | Red Lake |
| 42.5 | 1960-08-25 | 2 | 47°42'N / 95°25'W | 0.20 Mile | 40 Yards | 0 | 0 | 25K | 0 | Clearwater | |
| 42.5 | 1983-07-13 | 2 | 48°53'N / 95°15'W | 48°50'N / 95°13'W | 4.00 Miles | 867 Yards | 0 | 0 | 0K | 0 | Roseau |
| 43.0 | 1978-07-05 | 2 | 47°38'N / 95°35'W | 47°45'N / 95°15'W | 17.20 Miles | 400 Yards | 0 | 0 | 0K | 0 | Clearwater |
| 43.8 | 2006-08-05 | 3 | 48°54'N / 95°20'W | 48°54'N / 95°18'W | 4.00 Miles | 500 Yards | 0 | 0 | 20.0M | 0 | Roseau |
| Brief Description: Tornado number two of a series tracked east-southeast for about 4 miles across the northern part of Warroad. The main tornado appeared to have touched down about a mile west of the Marvin Windows plant complex at the northwest corner of Warroad. The tornado grew to around 500 yards wide as it moved across the Lakeview Park and campground area. The tornado apparently lifted as it passed into Muskeg Bay of the Lake of the Woods. Peak wind speeds were estimated from 160 to 180 mph. Damage was extensive along the tornado path in Warroad. At the Marvin Windows plant, the roof was damaged and 16 semi trailers were overturned. Several of the trailers were full with new windows, which were a complete loss. The nearby Pepsi plant had its sign blown down. At the Warroad City Park and Campground, 30 to 40 campers were destroyed and roughly 10 boats were damaged or sunk. The city pool, which had been recently renovated, was also damaged. The Trading Post Gift Shop was completely destroyed. Many large trees were also snapped off or broken into pieces. Eight to 10 homes also sustained damage. | |||||||||||
| 44.9 | 1981-08-05 | 2 | 47°42'N / 95°15'W | 0.80 Mile | 70 Yards | 0 | 0 | 3K | 0 | Clearwater | |
| 47.4 | 2010-06-17 | 3 | 47°38'N / 96°10'W | 47°46'N / 96°05'W | 9.00 Miles | 150 Yards | 1 | 2 | 0K | 0K | Polk |
| Brief Description: EVENT NARRATIVE: This tornado began in Polk County and tracked northeastward for nine miles to the Red Lake County line about 5 miles north-northeast of Mentor. After crossing into Red Lake County, it continued for an additional 6 miles. The tornado tracked across Maple Lake and the community of Mentor. Trees were sheared off or uprooted, power poles were snapped, and roofs and garages were destroyed. A convenience store and gas station along U. S. Highway 2 were flattened. Cabins, campers, boats, and docks were damaged along the northeast side of Maple Lake. Peak winds were estimated at 145 mph. EPISODE NARRATIVE: Conditions were ripe by the afternoon of the 17th for a major severe weather outbreak. A surface low had moved into east central North Dakota with an occluded front extending to the southeast. Warm and humid air was in place ahead of the front, with a much drier airmass pushing in behind it. The 500mb low was located over northwest North Dakota with a nice southwest to northeast upper jet pushing into eastern North Dakota. Two lines of convection formed by late afternoon, one from Roseau County down toward Eastern Otter Tail County and the other over east central North Dakota. Nearly all the cells that formed took on a classic hook shape with rotation very evident on radar imagery. Multiple tornado warnings were issued before the event wound down by mid evening. The strongest tornadoes were determined to be EF4 tornadoes, two in west central Minnesota and one in northeast North Dakota. | |||||||||||
* The information on this page is based on the global volcano database, the U.S. earthquake database of 1638-1985, and the U.S. Tornado and Weather Extremes database of 1950-2010.